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Finding the Fourth Proportional to 91,507.63, 137,248.44 and 35,374.18

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Solution

The fourth proportional to 91,507.63, 137,248.44 and 35,374.18 is: 53,056.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,507.63 : 137,248.44 = 35,374.18 : x
  2. Step 2: Convert to fraction form
    91,507.63/137,248.44 = 35,374.18/x
  3. Step 3: Cross multiply
    91,507.63x = 137,248.44 × 35,374.18
  4. Step 4: Simplify right side
    91,507.63x = 4,855,051,021.28
  5. Step 5: Solve for x
    x = 4,855,051,021.28/91,507.63
  6. Step 6: Final answer
    x = 53,056.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.